| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| Migration Schedule |
| ================== |
| |
| U-Boot has been migrating to a new driver model since its introduction in |
| 2014. This file describes the schedule for deprecation of pre-driver-model |
| features. |
| |
| CONFIG_DM |
| --------- |
| |
| * Status: In progress |
| * Deadline: 2020.01 |
| |
| Starting with the 2010.01 release CONFIG_DM will be enabled for all boards. |
| This does not concern CONFIG_DM_SPL and CONFIG_DM_TPL. The conversion date for |
| these configuration items still needs to be defined. |
| |
| CONFIG_DM_MMC |
| ------------- |
| |
| * Status: In progress |
| * Deadline: 2019.04 |
| |
| The subsystem itself has been converted and maintainers should submit patches |
| switching over to using CONFIG_DM_MMC and other base driver model options in |
| time for inclusion in the 2019.04 rerelease. |
| |
| CONFIG_DM_USB |
| ------------- |
| |
| * Status: In progress |
| * Deadline: 2019.07 |
| |
| The subsystem itself has been converted along with many of the host controller |
| and maintainers should submit patches switching over to using CONFIG_DM_USB and |
| other base driver model options in time for inclusion in the 2019.07 rerelease. |
| |
| CONFIG_SATA |
| ----------- |
| |
| * Status: In progress |
| * Deadline: 2019.07 |
| |
| The subsystem itself has been converted along with many of the host controller |
| and maintainers should submit patches switching over to using CONFIG_AHCI and |
| other base driver model options in time for inclusion in the 2019.07 rerelease. |
| |
| CONFIG_BLK |
| ---------- |
| |
| * Status: In progress |
| * Deadline: 2019.07 |
| |
| In concert with maintainers migrating their block device usage to the |
| appropriate DM driver, CONFIG_BLK needs to be set as well. The final deadline |
| here coincides with the final deadline for migration of the various block |
| subsystems. At this point we will be able to audit and correct the logic in |
| Kconfig around using CONFIG_PARTITIONS and CONFIG_SPL_LEGACY_BLOCK and make |
| use of CONFIG_BLK / CONFIG_SPL_BLK as needed. |
| |
| CONFIG_DM_SPI / CONFIG_DM_SPI_FLASH |
| ----------------------------------- |
| |
| Board Maintainers should submit the patches for enabling DM_SPI and DM_SPI_FLASH |
| to move the migration with in the deadline. |
| |
| Partially converted:: |
| |
| drivers/spi/fsl_espi.c |
| drivers/spi/mxc_spi.c |
| drivers/spi/sh_qspi.c |
| |
| * Status: In progress |
| * Deadline: 2019.07 |
| |
| CONFIG_DM_VIDEO |
| --------------- |
| Deadline: 2019.07 |
| |
| The video subsystem has supported driver model since early 2016. Maintainers |
| should submit patches switching over to using CONFIG_DM_VIDEO and other base |
| driver model options in time for inclusion in the 2019.07 release. |
| |
| CONFIG_DM_ETH |
| ------------- |
| Deadline: 2020.07 |
| |
| The network subsystem has supported the driver model since early 2015. |
| Maintainers should submit patches switching over to using CONFIG_DM_ETH and |
| other base driver model options in time for inclusion in the 2020.07 release. |
| |
| CONFIG_DM_I2C |
| ------------- |
| Deadline: 2021.10 |
| |
| The I2C subsystem has supported the driver model since early 2015. |
| Maintainers should submit patches switching over to using CONFIG_DM_I2C and |
| other base driver model options in time for inclusion in the 2021.10 release. |
| |
| CONFIG_KEYBOARD |
| --------------- |
| Deadline: 2022.10 |
| |
| This is a legacy option which has been replaced by driver model. |
| Maintainers should submit patches switching over to using CONFIG_DM_KEYBOARD and |
| other base driver model options in time for inclusion in the 2022.10 release. |
| |
| CONFIG_SYS_TIMER_RATE and CONFIG_SYS_TIMER_COUNTER |
| -------------------------------------------------- |
| Deadline: 2023.01 |
| |
| These are legacy options which have been replaced by driver model. |
| Maintainers should submit patches switching over to using CONFIG_TIMER and |
| other base driver model options in time for inclusion in the 2022.10 release. |
| |
| There is only one method to implement, unless you want to support bootstage, |
| in which case you need an early timer also. For example drivers, see |
| sandbox_timer.c and rockchip_timer.c |
| |
| CONFIG_DM_SERIAL |
| ---------------- |
| Deadline: 2023.04 |
| |
| The serial subsystem has supported the driver model since late 2014. |
| Maintainers should submit patches switching over to using CONFIG_DM_SERIAL and |
| other base driver model options in time for inclusion in the 2022.10 release. |